G(y) = √(4-y^2)

Definition

This function represents a semi-circle with radius 2 centered at the origin. It gives the y-coordinate of a point on the upper half of the circle based on its x-coordinate.

Related terms

Circle: A closed shape where all points are equidistant from a fixed center point.

Radius:

The distance between the center of a circle and any point on its circumference.

Origin: The point (0, 0) on a coordinate plane.